The event was attended by head of the Central Organisation Commission Pham Minh Chinh, who also joined the launch of the patriotic emulation programme and tree planting festival.
The nature reserve covers 40,000 hectares covering 14 communes of the two districts of Na Hang and Lam Binh, boasting rich flora and fauna as well as a system of exotic caves.
One of most notable animal species found in the reserve is the Tonkin snub-nosed monkey, which is endemic to Vietnam and a species on the IUCN Red List.
The nature reserve is also home to a number of scenic spots and archaeological sites from the Neolithic and metal ages.
Speaking at the event, Chinh stated that the recognition of Na Hang-Lam Binh as a special national site will help promote Tuyen Quang’s tourism and is a foundation for the province to work with neighbouring Bac Kan to seek UNESCO recognition of Ba Be-Na Hang as a world natural heritage site.
On the occasion, Tuyen Quang province also launched the patriotic emulation movement and tree planting festival of 2019.